Protein profile

VK055_1113

anti-anti-sigma factor family protein

Genome: KpATCC43816

Gene: AIK79736.1 Structure source: AlphaFold + ColabFold UniProt A0A1W1JVB4
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Amino acids 112
Annotations 2
Features 12
PDB binders 0
Druggability 0.221

Overview

Basic information about this protein and its source genome.

Accession
VK055_1113
Assembly
Klebsiella pneumoniae subsp. pneumoniae strain ATCC 43816 KPPR1, complete genome
Gene
AIK79736.1
Status
annotated
Amino acids
112
Structure source
AlphaFold + ColabFold
GO
GO:0043856 The function of binding to an anti-sigma factor and stopping, preventing or reducing the rate of its activity. GO:0006355 Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.

Target profile

Computed evidence for target prioritization.

Human off-target
No hit
Human identity (%)
0.0
Gut microbiome off-target
hit
Essential (DEG)
N
DEG identity (%)
31.183
Localization
Unknown
ColabFold pLDDT
92.65

Selected Druggability evidence

AlphaFold / UniProt model

Selected Druggability is the FPocket score chosen for ranking using the curated structure priority. The 3D viewer may show a different loaded structure, so its visible pockets can differ.

FPocket 0.221
Structure A0A1W1JVB4
Pocket Pocket 1
P2Rank
Structure A0A1W1JVB4
Pocket No pockets
ColabFold model
FPocket 0.244 · Pocket 1
Core conservation Accessory gene
Roary accessory
CoreCruncher accessory
Gut microbiome 21 / 4744 genomes with a hit
Normalized 0.004

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

2 GO

Gene Ontology (GO)

2
  • GO:0043856 The function of binding to an anti-sigma factor and stopping, preventing or reducing the rate of its activity.
  • GO:0006355 Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.

Sequence Features

Domain/signature hits from InterPro and related databases.

12 records
Show feature table
Start End DB Term Name
21 110 ProSiteProfiles PS50801 STAS domain profile.
21 110 InterPro IPR002645 STAS domain
1 109 PANTHER PTHR33495 ANTI-SIGMA FACTOR ANTAGONIST TM_1081-RELATED-RELATED
3 101 CDD cd07043 STAS_anti-anti-sigma_factors
1 108 SUPERFAMILY SSF52091 SpoIIaa-like
1 108 InterPro IPR036513 STAS domain superfamily
3 101 Pfam PF01740 STAS domain
3 101 InterPro IPR002645 STAS domain
1 110 Gene3D G3DSA:3.30.750.24 STAS domain
1 110 InterPro IPR036513 STAS domain superfamily
1 101 NCBIfam TIGR00377 anti-sigma factor antagonist
1 101 InterPro IPR003658 Anti-sigma factor antagonist

3D Structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; predicted models typically cover the full protein.

3D visualization script Full viewer

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Structural evidence

0 + 2

Experimental PDB entries and predicted models. Click Switch to display a different structure in the viewer.

Entry Method Resolution Chain Coverage Links Status
AlphaFold AF_A0A1W1JVB4
AlphaFold — — full sequence — Viewing
ColabFold VK055_1113
ColabFold — — full sequence — Loaded
Pocket details FPocket · P2Rank — toggle visibility and zoom from here, or open full viewer

Pockets (FPOCKET)

Showing top-ranked FPocket candidates by druggability. Druggability is color-coded: high (0.7 or higher), medium (0.4 to 0.69), low (below 0.4).

FPOCKET Sticks Spheres Surfaces Druggability Labels Zoom Positions
1 0.221

Ligand evidence

Ligands grouped by evidence source. PDB ligands keep the source crystal visible, and loaded crystals can be opened directly in the structure viewer.

17 records

Proposed virtual-screening candidates from ZINC. Score = Tanimoto similarity to a known binder (0–1; higher = more similar).

Show only:
Ligand Tanimoto MW · LogP · TPSA Lipinski PAINS SMILES
ZINC1532902 0.700 206.2 Da LogP -0.86 TPSA 132.1 ✓ Ro5 ✓ Clean O=C(O)CC[C@@](O)(CC(=O)O)C(=O)O
ZINC2018106 0.700 206.2 Da LogP -0.86 TPSA 132.1 ✓ Ro5 ✓ Clean O=C(O)CC[C@](O)(CC(=O)O)C(=O)O
ZINC3593496 0.652 206.2 Da LogP -1.16 TPSA 121.1 ✓ Ro5 ✓ Clean COC(=O)C[C@@](O)(CC(=O)O)C(=O)O
ZINC3593497 0.652 206.2 Da LogP -1.16 TPSA 121.1 ✓ Ro5 ✓ Clean COC(=O)C[C@](O)(CC(=O)O)C(=O)O
ZINC14686440 0.625 436.4 Da LogP -2.64 TPSA 247.9 1 viol. ✓ Clean O=C(O)C[C@](O)(CC(=O)NCCCCNC(=O)C[C@@](O)(CC(=O…
ZINC14686442 0.625 436.4 Da LogP -2.64 TPSA 247.9 1 viol. ✓ Clean O=C(O)C[C@@](O)(CC(=O)NCCCCNC(=O)C[C@](O)(CC(=O…
ZINC14686444 0.625 436.4 Da LogP -2.64 TPSA 247.9 1 viol. ✓ Clean O=C(O)C[C@@](O)(CC(=O)NCCCCNC(=O)C[C@@](O)(CC(=…
ZINC13398039 0.577 234.2 Da LogP -0.38 TPSA 121.1 ✓ Ro5 ✓ Clean CC(C)OC(=O)C[C@](O)(CC(=O)O)C(=O)O
ZINC2528012 0.577 234.2 Da LogP -0.38 TPSA 121.1 ✓ Ro5 ✓ Clean CC(C)OC(=O)C[C@@](O)(CC(=O)O)C(=O)O
ZINC146315135 0.560 204.2 Da LogP 0.86 TPSA 94.8 ✓ Ro5 ✓ Clean CCCCC[C@@](O)(CC(=O)O)C(=O)O
ZINC146315336 0.560 204.2 Da LogP 0.86 TPSA 94.8 ✓ Ro5 ✓ Clean CCCCC[C@](O)(CC(=O)O)C(=O)O
ZINC1850353 0.556 206.1 Da LogP -0.86 TPSA 132.1 ✓ Ro5 ✓ Clean O=C(O)CC(O)(CC(=O)O)CC(=O)O
ZINC13398014 0.522 220.2 Da LogP -1.07 TPSA 110.1 ✓ Ro5 ✓ Clean COC(=O)CC(O)(CC(=O)OC)C(=O)O
ZINC3861629 0.522 206.1 Da LogP -1.16 TPSA 121.1 ✓ Ro5 ✓ Clean COC(=O)C(O)(CC(=O)O)CC(=O)O
ZINC100969993 0.500 359.5 Da LogP 2.70 TPSA 123.9 ✓ Ro5 ✓ Clean CCCCCCCCCCCCNC(=O)C[C@](O)(CC(=O)O)C(=O)O
ZINC100969996 0.500 359.5 Da LogP 2.70 TPSA 123.9 ✓ Ro5 ✓ Clean CCCCCCCCCCCCNC(=O)C[C@@](O)(CC(=O)O)C(=O)O
ZINC1711854 0.500 248.2 Da LogP -0.13 TPSA 149.2 ✓ Ro5 ✓ Clean O=C(O)CC(CC(=O)O)(CC(=O)O)CC(=O)O

PDB and ChEMBL records on this protein are shown in full. ChEMBL records from similar proteins are capped at the top 100 per protein (by pchembl) and ZINC at the top 50 (Tanimoto ≥ 0.5). ADME columns are descriptor-based screening flags, not experimental toxicity results.